High-Efficiency Zngep2 Crystal for MID-Infrared Laser Systems

• Customization: Available
• After-sales Service: Shelf Life One Year (Under Normal Use Conditions)
• Warranty: Shelf Life One Year (Under Normal Use Conditions)
• Model NO.: ZGP Crystal
• Customized: Customized
• Transmission Range: 0.74 - 12um
• Lattice Constants: a=5.465 Å, C=10.771 Å
• Density: 4.162 g/cm3
• Mohs Hardness: 5.5
• Melting Point: 1027ºC
• Absorptivity: <0.02 Cm-1 @ 2.09 µm
• Thermal Conductivity: 36 W/M/°
• Damagethreshold@1 0 Ns, 2.05μm: >2 J/Cm2
• Orientation Accuracy: <±0.1°
• Surface Quality: 20/10 Per Mil-O-13830A
• Surface Flatness: λ/[email protected] T>=1mm
• Clear Aperture Tolerance: +0/-0.1mm
• Length Tolerance: ±0.1mm
• Parallelism: 30″
• Perpendicularity: 10′
• Trademark: CRYSTRONG
• Origin: China

Product Description

Zinc Phosphorus Germanium (ZGP)

Nature and Characteristics:
ZnGeP2 crystal (ZGP crystal for short), the Chinese name is phosphorus germanium zinc crystal. It has the characteristics of large nonlinearity (deff=75pm/V), low absorption, high thermal conductivity (36W/mK) and high damage threshold (> 2J/cm2). ZGP crystal is one of the best nonlinear materials to realize high-power middle and far-infrared tunable laser and THz band output at present. Pumping ZnGeP2 crystal by optical parametric transformation (OPO) technology can realize wide tuning middle and far infrared laser output, covering a wavelength band of 0.75-12μm, an effective wavelength band of 2.1-10.6μm and an absorption rate of less than 0.03cm-1. It has the advantages of stability, reliability, small volume, light weight and full curing, and has important application prospects in nuclear penetration prevention, infrared countermeasures, laser interference, blindness and so on.

Main Applications:
•The Second, Third and Fourth Frequency Doubling of CO2 Laser
•For optical parametric oscillation (OPO), 2.5-12 μm tunable laser output is achieved by using 2 μ m laser pumping.
•CO laser frequency doubling
•70μm-1000μm THz band generation
•CO, CO2 and other mid-infrared lasers (1-11μm) perform frequency difference or frequency combination.

 Basic Parameters:

Transmission Range	0.74 - 12 μm
Lattice Constants (a, c)	a = 5.465 Å, c = 10.771 Å
Density	4.162 g/cm³
Mohs Hardness	5.5
Nonlinear Coefficient (d36)	75 pm/V @ 10.6 μm
Melting Point	1027 ºC
Absorptivity	<0.02 cm^-1 @ 2.09 µm
Thermal Conductivity	36 W/M/°C
Damage Threshold	> 2 J/cm² @ 10 ns, 2.05 μm
Thermal Expansivity	||C: +8.08 x 10-6 /ºC ⊥C: +9.0 x 10-6 /ºC

 
Processing Parameters:

Orientation Accuracy	< ±0.1°
Surface Quality	20/10 per MIL-O-13830A
Surface Flatness	λ/8 @ 632.8 nm for T ≥ 1 mm
Clear Aperture Tolerance	+0 / -0.1 mm
Length Tolerance	±0.1 mm
Parallelism	30″
Perpendicularity	10′

About Us:
Crystrong Photonics Technology Co., Ltd. was established in 2012. The company integrates research and development (R&D), production, and sales, covering the entire laser industry chain. It serves the global laser application field and is committed to becoming a globally influential laser industry solution provider. Crystrong excels in various crystal growth technologies. Their crystal products span the infrared, visible light, and ultraviolet bands, and they have a track record of supporting large-scale national projects. As a long-term strategic partner of renowned domestic and foreign laser manufacturers, Crystrong offers dozens of conventional pockels cell models. These models encompass a variety of crystal materials, wavelengths, and frequencies. Additionally, special pockels cell models can be customized to meet customers' diverse use environments and application requirements. Crystrong also provides coating services and a range of lens optics components, which constitute the core advantage of their entire industry chain, ensuring superior product quality and competitive pricing.

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